Precision engineering works offers pew submersible pump sets which comes with a special winding design ensuring efficient operation even at high heads and low voltage. The company supplies submersible pumps both in radial and mixed flow. The motor used in these submersible pump sets is wet type squirrel cage induction motor of 2880 rpm suitable for operation at 415 v, 50 hz, 3-phase ac supply and 230 v, 50 hz, single phase ac supply. The winding of these pumps are constructed from water proof pvc insulated copper wires. Both the motor stator and rotor come vacuum impregnated and treated with epoxy coatings to ensure corrosion resistance. This submersible pump is multistage type with superior hydraulic design for maximum performance and operating efficiency. These submersible pumps have an unique design like close grained cast iron bowls for greater abrasion resistance; high quality graded bronze impellers for best results and stainless steel pump shaft ground to close tolerances and guided by water lubricated gun metal bearings provided in each bowl of impeller casing. Each submersible pump sets goes through a number of hydrostatic tests to ensure maximum discharge at selected heads under variable voltage conditions. The company also provides with stainless steel coupling to couple the motor and pump. The submersible pump sets are available with salient features which include little space required; no need for elaborate foundations and pump house arrangements; sturdy motor, insensitive to voltage fluctuations; motors have well designed sleeve bearings and thrust bearings of adequate capacity for longer life; motor stator and rotor are vacuum impregnated and treated with epoxy coatings to ensure corrosion resistance; high operating efficiencies of pump set result in high discharge rate and lower power bills; all rotating components and assemblies are dynamically balanced to ensure long bearing life and vibration-free smooth operation and water lubricated bearings provide noiseless and maintenance-free operation.
